Rehagen Racing has been building and racing fast Fords, since the 1970s! And they campaign a small fleet of S197 Boss 302S Mustangs in the super-competitive Pirelli World Challenge GTS class. And in a series like World Challenge GTS, in which they run a true Pirelli racing slick, minimizing deflection stiffness is key to predictable handling. So they run their #14 car (driven, during the 2015 season, by Nate Stacy) on a set of 18 inch Forgeline one piece forged monoblock GS1R wheels finished in Graphite.